Results 21 to 30 of about 18,792 (313)
Advances in Multicore Fiber Grating Sensors
Photonics, 2022 In recent years, multicore fiber (MCF) has attracted increasing interest for sensing applications, due to its unique fiber structure of multiple parallel cores in a single fiber cladding, which offers a flexible configurable platform to establish diverse
Zhiyong Zhao, Yunli Dang, Ming Tang
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Experimental validation of a reflective long period grating design methodology
Results in Optics, 2022 In this work, we present an experimental demonstration of our previously published modeling work on reflective long period grating (LPG). To provide the practical realization of the modeling work, we coat a long segment of fiber both in the tail length ...
Sohel Rana +2 more
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Helical Long Period Fiber Grating Inscribed in Elliptical Core Polarization-Maintaining Fiber
IEEE Access, 2021 A high-quality helical long period fiber grating (HLPFG) in elliptical core polarization-maintaining fiber (PMF) was experimentally demonstrated by using the hydrogen-oxygen flame heating technique.
Cailing Fu +3 more
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Radiation Effects on Long Period Fiber Gratings: A Review [PDF]
Sensors, 2020 Over the last years, fiber optic sensors have been increasingly applied for applications in environments with a high level of radiation as an alternative to electrical sensors, due to their: high immunity, high multiplexing and long-distance monitoring capability.
Flavio Esposito +3 more
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High Temperature Long Period Grating Thermo-Mechanically Written
Sensors, 2009 An optical fiber transducer able to work in high temperature environments is experimentally demonstrated in the laboratory. It is based on a permanent long period grating (LPG) written using a new technique based on a thermo-mechanical approach.
Antonio Quintela +2 more
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A long period grating based directional flow sensor [PDF]
, 2008 A chirped long period grating (LPG) is used as a directional flow sensor by monitoring the change in the transmission spectrum upon immersion in an oil of refractive index higher than that of the fibre cladding. The change in profile of an attenuation
Stephen J. Buggy +5 more
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Structural microfiber long-period gratings
Optics Express, 2012 We experimentally demonstrate a novel structural long-period grating by helically coiling one microfiber onto another with the relatively thicker diameter. Owing to the strong periodic modulation of the coiled microfiber to the evanescent field of the straight microfiber, a resonance transmission notch of ~16.2 dB can be induced for a compact device ...
Li-Peng, Sun +3 more
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Two-photon long-period grating inscription in pure-fused-silica photonic crystal fiber [PDF]
, 2007 Photochemical inscription of a long-period grating in a pure fused silica photonic crystal fiber (PCF) is reported.
Brambilla, Gilberto +7 more
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Fibers, 2017 The manufacturing and spectral features of different types of long period fiber gratings (LPFGs), ranging from phase-shifted, turn-around point, and internally tilted gratings, to pseudo-random gratings, are described and discussed in detail.
Francesco Chiavaioli +2 more
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Cryogenic Temperature Response Of Fibre Optic Long Period Gratings. [PDF]
, 2003 The thermal response of the attenuation bands of an optical fibre long period grating was monitored over a temperature range of 4.2–280 K. A linear dependence of the central wavelength of the band, of gradient 0.2 nm K-1, was observed over the range 77 ...
Bateman, Rod +4 more
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